Describe a mistake you've made and how you learned from it

My honest answer: If you, as an adult, are still "learning from your mistakes", it is a sign that you never learned from them as a child, and if you never learned from them as a child then why would you start learning from them now? When someone says they've learned from a mistake (in the greater sense of human growth and experience) they are attempting to excuse themselves. Such a person should not be taken seriously.

I asked my best friends. They gave me the same advice, in both cases passed down to them from their parents.

1. Research. Know everything. And then ask the sort of dumb questions that make your interviewers cheeks turn red with pride. "What's your favorite part of the day?"

2. Lie. About what you've done. About what you can do. We are smart people after all, aren't we? We can do anything.

3. Prepare answers. Which is what I'm trying to do now. I'm not doing a very good job.